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llvm-project/llvm/test/Transforms/SLPVectorizer/X86/alternate-fp.ll
Philip Reames e6ad9ef4e7 [instcombine] Canonicalize constant index type to i64 for extractelement/insertelement 
The basic idea to this is that a) having a single canonical type makes CSE easier, and b) many of our transforms are inconsistent about which types we end up with based on visit order.

I'm restricting this to constants as for non-constants, we'd have to decide whether the simplicity was worth extra instructions. For constants, there are no extra instructions.

We chose the canonical type as i64 arbitrarily.  We might consider changing this to something else in the future if we have cause.

Differential Revision: https://reviews.llvm.org/D115387
2021-12-13 16:56:22 -08:00

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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -mtriple=x86_64-unknown -basic-aa -slp-vectorizer -instcombine -S | FileCheck %s --check-prefix=CHECK --check-prefix=SSE
; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=slm -basic-aa -slp-vectorizer -instcombine -S | FileCheck %s --check-prefix=CHECK --check-prefix=SLM
; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=corei7-avx -basic-aa -slp-vectorizer -instcombine -S | FileCheck %s --check-prefix=CHECK --check-prefix=AVX
; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=core-avx2 -basic-aa -slp-vectorizer -instcombine -S | FileCheck %s --check-prefix=CHECK --check-prefix=AVX
; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=knl -basic-aa -slp-vectorizer -instcombine -S | FileCheck %s --check-prefix=CHECK --check-prefix=AVX512
; RUN: opt < %s -mtriple=x86_64-unknown -mcpu=skx -basic-aa -slp-vectorizer -instcombine -S | FileCheck %s --check-prefix=CHECK --check-prefix=AVX512
define <8 x float> @fadd_fsub_v8f32(<8 x float> %a, <8 x float> %b) {
; CHECK-LABEL: @fadd_fsub_v8f32(
; CHECK-NEXT: [[TMP1:%.*]] = fadd <8 x float> [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[TMP2:%.*]] = fsub <8 x float> [[A]], [[B]]
; CHECK-NEXT: [[TMP3:%.*]] = shufflevector <8 x float> [[TMP1]], <8 x float> [[TMP2]], <8 x i32> <i32 0, i32 9, i32 10, i32 3, i32 4, i32 13, i32 14, i32 7>
; CHECK-NEXT: ret <8 x float> [[TMP3]]
;
%a0 = extractelement <8 x float> %a, i32 0
%a1 = extractelement <8 x float> %a, i32 1
%a2 = extractelement <8 x float> %a, i32 2
%a3 = extractelement <8 x float> %a, i32 3
%a4 = extractelement <8 x float> %a, i32 4
%a5 = extractelement <8 x float> %a, i32 5
%a6 = extractelement <8 x float> %a, i32 6
%a7 = extractelement <8 x float> %a, i32 7
%b0 = extractelement <8 x float> %b, i32 0
%b1 = extractelement <8 x float> %b, i32 1
%b2 = extractelement <8 x float> %b, i32 2
%b3 = extractelement <8 x float> %b, i32 3
%b4 = extractelement <8 x float> %b, i32 4
%b5 = extractelement <8 x float> %b, i32 5
%b6 = extractelement <8 x float> %b, i32 6
%b7 = extractelement <8 x float> %b, i32 7
%ab0 = fadd float %a0, %b0
%ab1 = fsub float %a1, %b1
%ab2 = fsub float %a2, %b2
%ab3 = fadd float %a3, %b3
%ab4 = fadd float %a4, %b4
%ab5 = fsub float %a5, %b5
%ab6 = fsub float %a6, %b6
%ab7 = fadd float %a7, %b7
%r0 = insertelement <8 x float> undef, float %ab0, i32 0
%r1 = insertelement <8 x float> %r0, float %ab1, i32 1
%r2 = insertelement <8 x float> %r1, float %ab2, i32 2
%r3 = insertelement <8 x float> %r2, float %ab3, i32 3
%r4 = insertelement <8 x float> %r3, float %ab4, i32 4
%r5 = insertelement <8 x float> %r4, float %ab5, i32 5
%r6 = insertelement <8 x float> %r5, float %ab6, i32 6
%r7 = insertelement <8 x float> %r6, float %ab7, i32 7
ret <8 x float> %r7
}
define <8 x float> @fmul_fdiv_v8f32(<8 x float> %a, <8 x float> %b) {
; CHECK-LABEL: @fmul_fdiv_v8f32(
; CHECK-NEXT: [[TMP1:%.*]] = fmul <8 x float> [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[TMP2:%.*]] = fdiv <8 x float> [[A]], [[B]]
; CHECK-NEXT: [[TMP3:%.*]] = shufflevector <8 x float> [[TMP1]], <8 x float> [[TMP2]], <8 x i32> <i32 0, i32 9, i32 10, i32 3, i32 4, i32 13, i32 14, i32 7>
; CHECK-NEXT: ret <8 x float> [[TMP3]]
;
%a0 = extractelement <8 x float> %a, i32 0
%a1 = extractelement <8 x float> %a, i32 1
%a2 = extractelement <8 x float> %a, i32 2
%a3 = extractelement <8 x float> %a, i32 3
%a4 = extractelement <8 x float> %a, i32 4
%a5 = extractelement <8 x float> %a, i32 5
%a6 = extractelement <8 x float> %a, i32 6
%a7 = extractelement <8 x float> %a, i32 7
%b0 = extractelement <8 x float> %b, i32 0
%b1 = extractelement <8 x float> %b, i32 1
%b2 = extractelement <8 x float> %b, i32 2
%b3 = extractelement <8 x float> %b, i32 3
%b4 = extractelement <8 x float> %b, i32 4
%b5 = extractelement <8 x float> %b, i32 5
%b6 = extractelement <8 x float> %b, i32 6
%b7 = extractelement <8 x float> %b, i32 7
%ab0 = fmul float %a0, %b0
%ab1 = fdiv float %a1, %b1
%ab2 = fdiv float %a2, %b2
%ab3 = fmul float %a3, %b3
%ab4 = fmul float %a4, %b4
%ab5 = fdiv float %a5, %b5
%ab6 = fdiv float %a6, %b6
%ab7 = fmul float %a7, %b7
%r0 = insertelement <8 x float> undef, float %ab0, i32 0
%r1 = insertelement <8 x float> %r0, float %ab1, i32 1
%r2 = insertelement <8 x float> %r1, float %ab2, i32 2
%r3 = insertelement <8 x float> %r2, float %ab3, i32 3
%r4 = insertelement <8 x float> %r3, float %ab4, i32 4
%r5 = insertelement <8 x float> %r4, float %ab5, i32 5
%r6 = insertelement <8 x float> %r5, float %ab6, i32 6
%r7 = insertelement <8 x float> %r6, float %ab7, i32 7
ret <8 x float> %r7
}
define <4 x float> @fmul_fdiv_v4f32_const(<4 x float> %a) {
; SSE-LABEL: @fmul_fdiv_v4f32_const(
; SSE-NEXT: [[TMP1:%.*]] = fmul <4 x float> [[A:%.*]], <float 2.000000e+00, float 1.000000e+00, float 1.000000e+00, float 2.000000e+00>
; SSE-NEXT: ret <4 x float> [[TMP1]]
;
; SLM-LABEL: @fmul_fdiv_v4f32_const(
; SLM-NEXT: [[A2:%.*]] = extractelement <4 x float> [[A:%.*]], i64 2
; SLM-NEXT: [[A3:%.*]] = extractelement <4 x float> [[A]], i64 3
; SLM-NEXT: [[TMP1:%.*]] = shufflevector <4 x float> [[A]], <4 x float> undef, <2 x i32> <i32 0, i32 1>
; SLM-NEXT: [[TMP2:%.*]] = fmul <2 x float> [[TMP1]], <float 2.000000e+00, float 1.000000e+00>
; SLM-NEXT: [[AB3:%.*]] = fmul float [[A3]], 2.000000e+00
; SLM-NEXT: [[TMP3:%.*]] = shufflevector <2 x float> [[TMP2]], <2 x float> poison, <4 x i32> <i32 0, i32 1, i32 undef, i32 undef>
; SLM-NEXT: [[R2:%.*]] = insertelement <4 x float> [[TMP3]], float [[A2]], i64 2
; SLM-NEXT: [[R3:%.*]] = insertelement <4 x float> [[R2]], float [[AB3]], i64 3
; SLM-NEXT: ret <4 x float> [[R3]]
;
; AVX-LABEL: @fmul_fdiv_v4f32_const(
; AVX-NEXT: [[TMP1:%.*]] = fmul <4 x float> [[A:%.*]], <float 2.000000e+00, float 1.000000e+00, float 1.000000e+00, float 2.000000e+00>
; AVX-NEXT: ret <4 x float> [[TMP1]]
;
; AVX512-LABEL: @fmul_fdiv_v4f32_const(
; AVX512-NEXT: [[TMP1:%.*]] = fmul <4 x float> [[A:%.*]], <float 2.000000e+00, float 1.000000e+00, float 1.000000e+00, float 2.000000e+00>
; AVX512-NEXT: ret <4 x float> [[TMP1]]
;
%a0 = extractelement <4 x float> %a, i32 0
%a1 = extractelement <4 x float> %a, i32 1
%a2 = extractelement <4 x float> %a, i32 2
%a3 = extractelement <4 x float> %a, i32 3
%ab0 = fmul float %a0, 2.0
%ab1 = fmul float %a1, 1.0
%ab2 = fdiv float %a2, 1.0
%ab3 = fdiv float %a3, 0.5
%r0 = insertelement <4 x float> undef, float %ab0, i32 0
%r1 = insertelement <4 x float> %r0, float %ab1, i32 1
%r2 = insertelement <4 x float> %r1, float %ab2, i32 2
%r3 = insertelement <4 x float> %r2, float %ab3, i32 3
ret <4 x float> %r3
}
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